Wire nail.



" G. H. GAMEHL'.

WIRE NAIL. APPLIIOATIONI'ILED 4116.18, 1910.

Patented Feb. 14, 1911.

GEORGE H. GAMEHL, 0F BUFFALO; NEW YORK.

WIRE NAIL.

Specification of Letters Patent.

Patented Feb. 1a, 1911.

Application filed August 18, 1910. Serial No. 577,802.

To all whom it may concern:

Be it known that-I. GEORGE H. CAMEHL, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented a new and useful Improvement in Wire Nails, of which the fol lowing is a specification.

This invention relates more particularly to nails of that sort which are made from wire bent to form a shank and a broad head. These nails are especially adapted for fastening sheet roofing and other sheet or thin materials requiring fastening devices that afford an extended bearing on the material in order to prevent the same from being torn loose. 1

The object of the invention is to produce a desirable, practical and inexpensive wire nail having a head of novel form which affords the maximum bearing surface where it is most needed along the edge portion of the material being fastened, and which insures a nearly uniform pressure throughout the extent of the head. hese results are accomplished by making the head of the nail elongated or relatively long as compared with its width and having opposite loops which project laterally to opposite sides of the central shank. In the preferred construction the upper end of the shank is joined to one of the head loops by a part which crosses over and embraces the middle portion of the head and the end of the other head loop, thereby serving to press these parts down firmly on the material and prevent the opening or spreading of the head loops.

In the accompanying drawings: Figure 1 is a side elevation of a nail embodying the invention. Fig. 2 is a plan view of the nail driven into the material. Figs. 3 and 4 are sections thereof in lines 3-8 and t l. re spectively, Fig. 2, showing the nail head in elevation. Fig. 5 is a perspective view of the nail. Fig. 6 is a perspective view of a nail having a head of slightly modified form.

Like reference characters refer to like parts in the several figures.

Referring first to the embodiment of the invention illustrated in Figs. 1-5, the nail comprises a shank or penetrating point and a head which are formed from a single piece of suitable wire bent into the form shown. The head is elongated or relatively long as compared with its width, the opposite ends of the wire being-bent reversely or into substantially S-shape, thereby forming loops 0 a which project laterally to opposite sides of the shank B and are connected by a cross bara extending substantially at right angles to the shank. One end a of the wire terminates at the middle portion of the cross bar and the other end thereof crosses over the cross bar a and the opposite end a being continued downwardly from the head to form the shank. The portion a, of the wire which crosses over the cross bar a and the end a is bent so as to embrace these parts, thereby preventing the opening or spreading of the loops a a of the head.

This bent cross-over portion a also forms.

a hump or projection at the central portion of the head substantially over the shank which is adapted to be struck by the hammer and1 therefore facilitates the driving of the nai The head is preferably bowed slightly lengthwise, as shown in Fig. 1, so that the opposite ends of the head will engage and bear on the object into which the nail is driven before the central part. When the nail is driven home the head will be sprung or flattened out until its middle portion also bears on the object, as shown in Fig. l, thus causing its head to be more firmly pressed against the object. As the portion a crosses over the cross bar a and the end a the middle portion of the head will be held from springing away from the object and all portions of the liead will therefore be caused to bear firmly on the object.

WV hen the nail is used for fastening the edge of sheet material it is preferably placed so that the greater dimension of the head will extend substantially parallel wit-h the edge of the material, as shown in Fig. 2. When thus placed the head of the nail will bear throughout its full length on the edge portion of the material, and give a much iore extended bearing surface at the edge of the material than would be afforded by a nail made from an equal length of wire and having a circular head.

The head of the nail shown in Fig. 6 is of substantially the form above described, except that the end of the wire forming the shank B does not cross over the cross bar and other end of the wire. The head has a corresponding cross bar a and reversely bent ends forming the two loops a and a projecting laterally to opposite ends of the shank. I

I claim as my invention:

1. A nail comprising a shank and a head having a cross bar with reyersely bent opposite ends forming loops which project laterally to opposite sides of the shank, substantially as set forth.

2. A nail consisting of a piece of wire bent to form a shank and a head having loops which project laterally to opposite sides of the shank, said shank being joined to the end of one loop by a portion which embraces and confines the end of the other loop, substantially as set forth.

3. A nail consisting of a piece of wire bent to form a double looped head and one end of which crosses over the middle portion of the head and extends at an angle from the head forming a shank, said head being bowed lengthwise, substantially as set forth.

\Vitness my hand in the presence of two subscribing witnesses.

GEORGE H. CAMEI-IL.

Witnesses C. V. PARKER, A. L. MGGEE. 

